Blackout vs Cement grey
Blackout is a Behr color while Cement grey comes from RAL Classic. Both sit in the grey family, which is useful context if you're narrowing within a single hue direction. At LRV 24 vs 6, Cement grey will read as the brighter of the two — a 18-point gap that matters most in north-facing or low-light rooms. At ΔE 28.0, these are genuinely distinct colors — a strong contrast if used together, or a meaningful choice between two different directions. Below you'll find 4 real-room photo comparisons where both colors appear side by side, plus 5 simulated room previews.
Blackout vs Cement grey in Real Spaces
4 real rooms side by side. Seeing Blackout and Cement grey in actual rooms makes the difference concrete; browse the spaces below to get a feel for how each color lives on a wall.
Living Room
Living rooms test a color across a full range of conditions — morning sun, afternoon shade, and evening lamp light all shift how both of these read. Cement grey returns significantly more light to the room — in a smaller or darker space, that difference in perceived brightness is hard to miss.
Bedroom
Bedroom walls are often seen under warm artificial light, a context that shifts both colors from how they look on a chip. The LRV gap is large enough that Cement grey will make the room feel meaningfully brighter than Blackout would.
Bathroom
Bathrooms amplify color — the enclosed space and reflective surfaces make what reads subtle elsewhere feel more present here. The LRV gap is large enough that Cement grey will make the room feel meaningfully brighter than Blackout would.
House
At full exterior scale, the difference between these two colors becomes much easier to judge than from a small chip. The LRV gap is large enough that Cement grey will make the room feel meaningfully brighter than Blackout would.
Color Details
Blackout vs Cement grey Simulated Comparison
5 simulated room previews — drag the slider on each to see Blackout on one side and Cement grey on the other.
Digital color is approximate. These simulations are generated from the manufacturer's hex values and overlaid on grayscale room photos — your screen's calibration, brightness, and viewing angle all affect how they render. Before committing to either color, test physical samples in your own space under the light you actually live with.
More Blackout comparisons
See how Blackout stacks up against other well-photographed colors across different brands and tones.
At LRV 83 vs 6, White Dove is decisively the brighter choice.
Purbeck Stone reflects far more light (LRV 52 vs 6), opening up a space where Blackout encloses it.
Evergreen Fog reflects far more light (LRV 30 vs 6), opening up a space where Blackout encloses it.
Agreeable Gray reflects far more light (LRV 60 vs 6), opening up a space where Blackout encloses it.
At LRV 58 vs 6, Accessible Beige is decisively the brighter choice.
At LRV 27 vs 6, Denim Drift is decisively the brighter choice.
French Gray reflects far more light (LRV 43 vs 6), opening up a space where Blackout encloses it.
At LRV 55 vs 6, Tranquil Dawn is decisively the brighter choice.
At LRV 44 vs 6, Hardwick White is decisively the brighter choice.
Pure White reflects far more light (LRV 84 vs 6), opening up a space where Blackout encloses it.
At LRV 66 vs 6, Balboa Mist is decisively the brighter choice.
At LRV 74 vs 6, Shoji White is decisively the brighter choice.
A 6-point LRV gap (12 vs 6) makes Pewter Green the marginally brighter of the two.
Their light reflectance is nearly identical (LRV 8 vs 6), so neither reads brighter in a room.
At LRV 68 vs 6, Skimming Stone is decisively the brighter choice.
A 6-point LRV gap (12 vs 6) makes Vintage Vogue the marginally brighter of the two.
At LRV 45 vs 6, Saybrook Sage is decisively the brighter choice.
Pale Green reflects far more light (LRV 31 vs 6), opening up a space where Blackout encloses it.